Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. For strong, powerful ...

By working on the glutes and core, you’ll protect your lower back from injury and improve the alignment of your hips. This ...

Ah, hamstrings: the middle child of muscle groups. While they might not be the sexiest parts of our bodies, strong hamstrings play a vital role in our overall strength and stability. To learn more ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Nordic curls are a bit of a gymgoer’s party trick. As you lower the backside of your body backwards ...

If you're walking, standing up from the couch or bending down to pick something up, you are using your hamstrings. The muscles, which run down the back of the leg from the hip to the knee, are ...